Piping
Caution
1. Regarding the circulating fluid piping, consider
carefully the suitability for temperature and
circulating fluid.
If the operating performance is not sufficient, the pipings may burst
during operation. Also, the use of corrosive materials such as alu-
minum or iron for fluid contact parts, such as piping, may not only
lead to clogging or leakage in the circulating fluid circuit but also
refrigerant leakage and other unexpected problems. Provide
protection against corrosion when you use the product.
2. Select the piping port size which can exceed the rated flow.
For the rated flow, refer to the pump capacity table.
3. When tightening at the drain port of this product,
use a pipe wrench to clamp the connection ports.
4. Supply water pressure to the automatic fluid fill port
of this product should be 0.2 to 0.5 MPa.
This product has a built-in ball (float) tap. If you attach it to the
faucet of a sink, etc. it will automatically supply water to the
rated fluid level of the tank (halfway between HIGH and LOW.)
If the water supply pressure is too high, the pipes may burst
during use. Proceed with caution.
5. Ensure that piping is connected to the overflow port
so that the circulating fluid can be exhausted to the
drainage pit when the fluid level in the tank increases.
6. For the circulating fluid piping connection, install a
drain pan and wastewater collection pit just in case
the circulating fluid may leak.
7. This product series are constant-temperature fluid
circulating machines with built-in tanks.
Do not install equipment on your system side such as pumps
that forcibly return the circulating fluid to the unit. Also, if you
attach an external tank that is open to the air, it may become
impossible to circulate the circulating fluid. Proceed with caution.
Mounting/Installation
Warning
Do not place heavy objects on top of this product, or step on it.
The external panel can be deformed and danger can result.
Caution
1. Install on a rigid floor which can withstand this
product’s weight.
2. Secure with bolts, anchor bolts, etc.
3. Refer to the operation manual for this product, and
secure an installation space that is necessary for
the maintenance and ventilation.
1. The air-cooled type product exhausts heat using the fan that is
mounted to the product. If the product is operated with insuffi-
cient ventilation, ambient temperature may exceed 45
°
C, and
this will affect the performance and life of the product. To pre-
vent this ensure that suitable ventilation is available (see below).
2. For installation indoors, ventilation ports and a ventilation fan
should be equipped as needed.
Required installation space
for ventilation and
maintenance
Ventilation
2000 mm or more
800 mm or more
800 mm or more
800 mm or more
400 mm
or more
3. If it is impossible to exhaust heat from the installation area in-
doors, or when the installation area is conditioned, provide a
duct for heat exhaustion to the air outlet port of this product for
ventilation. Do not mount the inlet of the duct (flange) directly to
the air vent of the product, and keep a space larger than the di-
ameter of the duct. Additionally, consider the resistance of the
duct when making the air vent port for the duct.
<Heat radiation amount/Required ventilation rate>
Heat
radiation
amount
[kW]
Required ventilation rate [m
3
/min]
Differential temp. of 3
°
C
between inside and outside
of installation area
Differential temp. of 6
°
C
between inside and outside
of installation area
Approx. 52
865
435
4. When using the product at a low ambient tempera-
ture (10
°
C or less), refer to “Operation at low ambi-
ent temperature or low circulating fluid tempera-
ture” (page 15).
Be sure to read this before handling the products. For safety instructions and
temperature control equipment precautions, refer to the “Handling Precautions for SMC
Products” and the “Operation Manual” on the SMC website: https://www.smcworld.com
HRS400
Series
Specific Product Precautions 3
16
